$CLRO
CLEARONE INC Stock $clro

$clro Overview Financials Valuation SEC Filings Company Website

2019 Form 10-K Financial Statement

#000175392620000071 Filed on March 30, 2020

Income Statement

Concept	2019	2018 Q4	2018 Q1
Revenue	$25.04M	$7.210M	$7.289M
YoY Change	-11.06%	-22.14%	-37.58%
Cost Of Revenue	$13.85M	$4.170M	$3.190M
YoY Change	-6.33%	-7.33%	-36.2%
Gross Profit	$11.19M	$3.040M	$4.099M
YoY Change	-16.29%	-36.0%	-38.62%
Gross Profit Margin	44.7%	42.16%	56.24%
Selling, General & Admin	$13.98M	$3.560M	$4.485M
YoY Change	-11.84%	-14.63%	-7.47%
% of Gross Profit	124.9%	117.11%	109.42%
Research & Development	$5.775M	$2.080M	$2.056M
YoY Change	-26.34%	-13.33%	-12.77%
% of Gross Profit	51.59%	68.42%	50.16%
Depreciation & Amortization	$512.0K	$420.0K	$380.0K
YoY Change	-67.8%	16.67%	-5.47%
% of Gross Profit	4.57%	13.82%	9.27%
Operating Expenses	$19.76M	$5.650M	$6.541M
YoY Change	-16.64%	-14.0%	-9.2%
Operating Profit	-$8.562M	-$2.610M	-$2.442M
YoY Change	-17.09%	43.41%	364.26%
Interest Expense	$26.00K
YoY Change
% of Operating Profit
Other Income/Expense, Net	$236.0K	$0.00	$24.00K
YoY Change	195.0%	-100.0%	-76.47%
Pretax Income	-$6.207M	-$2.600M	-$2.418M
YoY Change	-19.92%	154.9%	470.28%
Income Tax	$56.00K	-$40.00K	-$572.0K
% Of Pretax Income
Net Earnings	-$8.408M	-$2.540M	-$1.846M
YoY Change	-49.61%	-29.64%	294.44%
Net Earnings / Revenue	-33.58%	-35.23%	-25.33%
Basic Earnings Per Share	-$0.51		-$0.22
Diluted Earnings Per Share	-$0.51	-$233.9K	-$0.22
COMMON SHARES
Basic Shares Outstanding	16.64M shares	8.307M	8.307M
Diluted Shares Outstanding	16.64M shares		8.307M

Balance Sheet

Concept	2019	2018 Q4	2018 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$7.090M	$12.16M	$8.710M
YoY Change	-41.69%	47.22%	-39.93%
Cash & Equivalents	$4.060M	$11.21M	$5.577M
Short-Term Investments	$3.030M	$950.0K	$3.130M
Other Short-Term Assets	$1.180M	$2.190M	$1.960M
YoY Change	-46.12%	-35.96%	-56.05%
Inventory	$11.44M	$13.23M	$14.62M
Prepaid Expenses
Receivables	$5.470M	$6.782M	$6.247M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$25.18M	$34.37M	$31.54M
YoY Change	-26.74%	1.41%	-22.52%
LONG-TERM ASSETS
Property, Plant & Equipment	$3.500M	$1.388M	$1.481M
YoY Change	151.8%	-10.39%	-3.2%
Goodwill
YoY Change
Intangibles		$10.25M	$7.640M
YoY Change		56.64%
Long-Term Investments	$1.520M	$3.760M	$7.420M
YoY Change	-59.57%	-63.67%	-64.83%
Other Assets	$10.90M	$196.0K	$316.0K
YoY Change	19.13%	-36.98%	-95.14%
Total Long-Term Assets	$29.93M	$24.55M	$32.65M
YoY Change	21.91%	-27.77%	-31.06%
TOTAL ASSETS
Total Short-Term Assets	$25.18M	$34.37M	$31.54M
Total Long-Term Assets	$29.93M	$24.55M	$32.65M
Total Assets	$55.11M	$58.92M	$64.19M
YoY Change	-6.47%	-13.2%	-27.11%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.870M	$3.729M	$4.295M
YoY Change	-23.06%	-9.53%	-12.53%
Accrued Expenses	$3.210M	$1.996M	$1.975M
YoY Change	60.5%	8.3%	-3.66%
Deferred Revenue		$283.0K	$282.0K
YoY Change		-93.89%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$6.250M	$6.008M	$6.552M
YoY Change	3.99%	-43.32%	-39.56%
LONG-TERM LIABILITIES
Long-Term Debt	$2.220M	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$2.160M	$571.0K	$679.0K
YoY Change	204.23%	-5.93%	-50.07%
Total Long-Term Liabilities	$4.380M	$571.0K	$679.0K
YoY Change	516.9%	-5.93%	-50.07%
TOTAL LIABILITIES
Total Short-Term Liabilities	$6.250M	$6.008M	$6.552M
Total Long-Term Liabilities	$4.380M	$571.0K	$679.0K
Total Liabilities	$10.63M	$6.714M	$7.312M
YoY Change	58.42%	-40.64%	-40.07%
SHAREHOLDERS EQUITY
Retained Earnings		-$5.475M	$9.367M
YoY Change		-159.77%
Common Stock		$57.86M	$47.62M
YoY Change		21.88%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$44.48M	$52.20M	$56.87M
YoY Change
Total Liabilities & Shareholders Equity	$55.11M	$58.92M	$64.19M
YoY Change	-6.47%	-13.2%	-27.11%

Cashflow Statement

Concept	2019	2018 Q4	2018 Q1
OPERATING ACTIVITIES
Net Income	-$8.408M	-$2.540M	-$1.846M
YoY Change	-49.61%	-29.64%	294.44%
Depreciation, Depletion And Amortization	$512.0K	$420.0K	$380.0K
YoY Change	-67.8%	16.67%	-5.47%
Cash From Operating Activities	-$4.656M	-$3.040M	-$299.0K
YoY Change	-29.68%	84.24%	-78.06%
INVESTING ACTIVITIES
Capital Expenditures	$205.0K	-$60.00K	$62.00K
YoY Change	-38.99%	-66.67%	-65.75%
Acquisitions
YoY Change
Other Investing Activities	-$4.850M	$1.940M	$1.140M
YoY Change	-235.1%	-67.17%	-315.09%
Cash From Investing Activities	-$5.127M	$1.880M	$1.013M
YoY Change	-262.71%	-67.25%	-231.9%
FINANCING ACTIVITIES
Cash Dividend Paid			$583.0K
YoY Change			32.8%
Common Stock Issuance & Retirement, Net	$0.00	$9.883M	$147.0K
YoY Change	-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$2.677M	9.890M	-719.0K
YoY Change	-70.88%	-738.06%	-46.3%
NET CHANGE
Cash From Operating Activities	-$4.656M	-3.040M	-299.0K
Cash From Investing Activities	-$5.127M	1.880M	1.013M
Cash From Financing Activities	$2.677M	9.890M	-719.0K
Net Change In Cash	-$7.106M	8.730M	-5.000K
YoY Change	-224.19%	243.7%	-99.86%
FREE CASH FLOW
Cash From Operating Activities	-$4.656M	-$3.040M	-$299.0K
Capital Expenditures	$205.0K	-$60.00K	$62.00K
Free Cash Flow	-$4.861M	-$2.980M	-$361.0K
YoY Change	-30.13%	102.72%	-76.62%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2018Q4	clro	Warrants Carrying Amount WarrantsCarryingAmount		USD
CY2018	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	159000	USD
CY2019Q4	clro	Warrants Carrying Amount WarrantsCarryingAmount	318000	USD
CY2018Q4	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding		USD
CY2019Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	778000	USD
CY2018Q4	clro	Warrant Instrument Convertible Beneficial Conversion Feature WarrantInstrumentConvertibleBeneficialConversionFeature		USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1920000	USD
CY2018Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount		USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	360000	USD
CY2019Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	3000000	USD
CY2019Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	1517000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-16803000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	68000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths		USD
CY2019Q4	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding	440000	USD
CY2017Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	245000	USD
CY2018	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs		USD
CY2018Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet		USD
CY2019Q4	clro	Warrant Instrument Convertible Beneficial Conversion Feature WarrantInstrumentConvertibleBeneficialConversionFeature	122000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	3205000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	10632000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1996000	USD
CY2019Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent		USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-5475000	USD
CY2019Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	3026000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1388000	USD
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset		USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	6782000	USD
CY2018Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	3764000	USD
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	173000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	5468000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	6249000	USD
CY2018Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	951000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-181000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	52201000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	2021000	USD
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	16630597	shares
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	55110000	USD
CY2019Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	2222000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-176000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	58520000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	17000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	6008000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	283000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	140000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	1184000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	571000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	196000	USD
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	16650725	shares
CY2019Q4	us-gaap	Assets Current AssetsCurrent	25183000	USD
CY2018Q4	us-gaap	Inventory Noncurrent InventoryNoncurrent	8953000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	44478000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	2871000	USD
CY2019Q4	us-gaap	Assets Assets	55110000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	4614000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-13883000	USD
CY2018Q4	us-gaap	Assets Assets	58915000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	424000	USD
CY2018Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable		USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	4064000	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	3729000	USD
CY2018Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	57840000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	631000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	2193000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	58915000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-78000	USD
CY2019Q4	us-gaap	Inventory Noncurrent InventoryNoncurrent	6284000	USD
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	16630597	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	16650725	shares
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	210000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	-8562000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	14785000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6440000	USD
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	8942629	shares
CY2019	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	7935000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-38000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	6045000	USD
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	5950000	USD
CY2019	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	25042000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-8352000	USD
CY2018	us-gaap	Operating Expenses OperatingExpenses	23698000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16638580	shares
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-63000	USD
CY2018	us-gaap	Gross Profit GrossProfit	13371000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	-10327000	USD
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	8942629	shares
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	80000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-10247000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	56000	USD
CY2019	us-gaap	Gross Profit GrossProfit	11193000	USD
CY2018	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	7840000	USD
CY2018	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	9908000	USD
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.87
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CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.87
CY2019	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	5775000	USD
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	16638580	shares
CY2018	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	28156000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-8403000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.51
CY2018	clro	Capitalized Patent Defense Costs CapitalizedPatentDefenseCosts	4698000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	159000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-6621000	USD
CY2019	us-gaap	Inventory Write Down InventoryWriteDown	891000	USD
CY2018	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	2230000	USD
CY2019	clro	Operating Lease Right Of Use Asset Amortization OperatingLeaseRightOfUseAssetAmortization	561000	USD
CY2019	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	9003000	USD
CY2019	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	368000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	336000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	5571000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-1511000	USD
CY2019	clro	Capitalized Patent Defense Costs CapitalizedPatentDefenseCosts	5086000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock		USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	1517000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	1500000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	3021000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	3026000	USD
CY2018Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	46000	USD
CY2018Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1000	USD
CY2019Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	4000	USD
CY2019Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	4000	USD
CY2019Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss		USD
CY2019Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	4000	USD
CY2019Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	2197000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1590000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-56000	USD
CY2019	clro	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-557000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-34000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	217000	USD
CY2019	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits		USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	9883000	USD
CY2018	clro	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities		USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	583000	USD
CY2019	clro	Amortization Reversal Of Deferred Charges AmortizationReversalOfDeferredCharges		USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-41000	USD
CY2018	clro	Amortization Reversal Of Deferred Charges AmortizationReversalOfDeferredCharges	-12000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	3151000	USD
CY2018	clro	Operating Lease Right Of Use Asset Amortization OperatingLeaseRightOfUseAssetAmortization		USD
CY2019	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	2654000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	11000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-392000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	147000	USD
CY2019	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-110000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-43000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-1000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-207000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends		USD
CY2018	us-gaap	Inventory Write Down InventoryWriteDown	787000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-5127000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1914000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-3565000	USD
CY2018	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	-258000	USD
CY2018	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	101000	USD
CY2018	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	39000	USD
CY2018	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-835000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	5640000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	184000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1000	USD
CY2019	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	76000	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-36000	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	10516000	USD
CY2018	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-8000	USD
CY2019	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-7147000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	205000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-858000	USD
CY2018	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt		USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	4148000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	6714000	USD
CY2018Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	135000	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	627000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock		USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-4656000	USD
CY2019	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	92000	USD
CY2019Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	194000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2019	us-gaap	Fiscal Period FiscalPeriod	<div> <div style="font-family: 'times new roman', times; font-size: 10pt;"> <div style="border-right: none; border-left: none;"> <div style="border-right: none; border-left: none;"> <p style="margin: 0px; text-align: justify; text-indent: 0px;"><font style="font-family: 'Times New Roman'; font-size: 10pt; font-style: italic;">Fiscal Year</font><font style="font-family: 'Times New Roman'; font-size: 10pt;"> – This report on Form 10-K includes consolidated balance sheets for t</font><font style="font-family: 'Times New Roman'; font-size: 10pt;">he years ended <font>December 31, 2019</font> and <font>2018</font></font><font style="font-family: 'Times New Roman'; font-size: 10pt;"> and the related consolidated statements of operations and comprehensive loss, shareholders' equity, and cash flows</font><font style="font-family: 'Times New Roman'; font-size: 10pt;"> </font><font style="font-family: 'Times New Roman'; font-size: 10pt;">for each of the years </font><font style="font-family: 'Times New Roman'; font-size: 10pt;"><font>2019</font> and <font>2018</font></font><font style="font-family: 'Times New Roman'; font-size: 10pt;">.</font></p> </div> </div> </div> </div>
CY2019Q4	clro	Deferred Cost Of Goods Sold DeferredCostOfGoodsSold		USD
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	713331	shares
CY2018Q4	clro	Deferred Cost Of Goods Sold DeferredCostOfGoodsSold		USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	382000	USD
CY2019	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div> <div style="font-family: 'times new roman', times; font-size: 10pt;"> <div style="border-right: none; border-left: none;"> <div style="border-right: none; border-left: none;"> <p style="margin: 0px; text-align: justify; text-indent: 0px;"><font style="font-family: 'Times New Roman'; font-size: 10pt; font-style: italic;">Concentration Risk</font><font style="font-family: 'Times New Roman'; font-size: 10pt;"> – We depend on an outsourced manufacturing strategy for our products. We outsource the manufacture of </font><font style="font-family: 'Times New Roman'; font-size: 10pt;">all of</font><font style="font-family: 'Times New Roman'; font-size: 10pt;"> our products to third party manufacturers located in Asia. If any of these manufacturers experience difficulties in obtaining sufficient supplies of components, component prices significantly exceeding the anticipated costs, an interruption in their operations, or otherwise suffer capacity constraints, we would experience a delay in production and shipping of these products, which would have a negative impact on our revenues. Should there be any disruption in services due to natural disaster, economic or political difficulties, transportation restrictions, acts of terror, quarantine or other restrictions associated with infectious diseases, or other similar events, or any other reason, such disruption may have a material adverse effect on our business. Operating in the international environment exposes us to certain inherent risks, including unexpected changes in regulatory requirements and tariffs, and potentially adverse tax consequences, which could materially affect our results of operations. Currently, we have no second source of manufacturing for a portion of our products.</font></p> </div> </div> </div> </div>
CY2018	us-gaap	Incremental Common Shares Attributable To Equity Unit Purchase Agreements IncrementalCommonSharesAttributableToEquityUnitPurchaseAgreements		shares
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	424000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1044000	USD
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	566200	shares
CY2018	us-gaap	Advertising Expense AdvertisingExpense	1037000	USD
CY2019Q4	us-gaap	Deferred Revenue DeferredRevenue	173000	USD
CY2019	us-gaap	Incremental Common Shares Attributable To Equity Unit Purchase Agreements IncrementalCommonSharesAttributableToEquityUnitPurchaseAgreements		shares
CY2019Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	4521000	USD
CY2019Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	2197000	USD
CY2019Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	26000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	4543000	USD
CY2019Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue		USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	4521000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	13228000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	9573000	USD
CY2019	clro	Increase Decrease In Net Cash Provided By Used In Operating Activities IncreaseDecreaseInNetCashProvidedByUsedInOperatingActivities	1965000	USD
CY2019	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	299000	USD
CY2018Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	194000	USD
CY2018Q4	clro	Deferred Gross Profit DeferredGrossProfit	283000	USD
CY2019	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	121000	USD
CY2019Q4	clro	Working Capital Deficit WorkingCapitalDeficit	18934000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	472000	USD
CY2018Q4	us-gaap	Deferred Revenue DeferredRevenue	283000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	1125000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1389000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	14009000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1398000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	22353000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	8344000	USD
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	566200	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	713331	shares
CY2018Q4	clro	Working Capital Deficit WorkingCapitalDeficit	28357000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	7305000	USD
CY2019Q4	clro	Capitalized Legal Expenses Net Of Amortization Related To Defense Of Patents From Infringement CapitalizedLegalExpensesNetOfAmortizationRelatedToDefenseOfPatentsFromInfringement	11040000000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1093000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	10249000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1402000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1396000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	6987000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1396000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	8062000	USD
CY2019	us-gaap	Property Plant And Equipment Disposals PropertyPlantAndEquipmentDisposals	34000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	8529000	USD
CY2018Q4	clro	Inventory Noncurrent Finished Goods Net Of Reserves InventoryNoncurrentFinishedGoodsNetOfReserves	6788000	USD
CY2018Q4	clro	Inventory Noncurrent Raw Materials Net Of Reserves InventoryNoncurrentRawMaterialsNetOfReserves	2165000	USD
CY2019Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	10594000	USD
CY2019Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	847000	USD
CY2019Q4	clro	Inventory Noncurrent Finished Goods Net Of Reserves InventoryNoncurrentFinishedGoodsNetOfReserves	4369000	USD
CY2019Q4	clro	Inventory Noncurrent Raw Materials Net Of Reserves InventoryNoncurrentRawMaterialsNetOfReserves	1915000	USD
CY2018Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	11433000	USD
CY2018Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	1795000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	9450000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	306000	USD
CY2018	us-gaap	Operating Lease Expense OperatingLeaseExpense	1053000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	708000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	804000	USD
CY2018Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	36000	USD
CY2019Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	772000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	577000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	347000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	449000	USD
CY2019Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	194000	USD
CY2019Q4	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	378000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-83000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-318000	USD
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	31000	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	27000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	233000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	160000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-37000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	23000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	375000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	59000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-26000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	118000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit		USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-628000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1621000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	43000	USD
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0000840715
CY2019	dei	Trading Symbol TradingSymbol	clro
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	185000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	679000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	652000	USD
CY2019	dei	Entity Registrant Name EntityRegistrantName	CLEARONE INC
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	134000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	2247000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions		USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	679000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	9000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	298000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	58000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	56000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	6438000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	6523000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-1754000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	250000	USD
CY2019	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-2427000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance Noncurrent DeferredTaxAssetsValuationAllowanceNoncurrent	11460000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-23000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-12000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	2427000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-2152000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	290000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	107000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-413000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	14000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2233000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	50000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-117000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-667000	USD
CY2019	clro	Deferred Income Tax Expense Benefit Before Valuation Allowance Deferred Tax Asset Change In Amount DeferredIncomeTaxExpenseBenefitBeforeValuationAllowanceDeferredTaxAssetChangeInAmount	-2427000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	4067000	USD
CY2018	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-9918000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-393000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross Noncurrent DeferredTaxAssetsGrossNoncurrent	13760000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-413000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	551000	USD
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CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	322000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-495000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	99000	USD
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CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance Noncurrent DeferredTaxAssetsValuationAllowanceNoncurrent	13760000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-7751000	USD
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CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-2145000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-6207000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	71000	USD
CY2019Q2	dei	Entity Public Float EntityPublicFloat	13000000	USD
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CY2019Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	3157000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	36000	USD
CY2019	dei	Security12b Title Security12bTitle	Common Stock, $0.001 par value
CY2018Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	3283000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	9918000	USD
CY2019	dei	Document Type DocumentType	10-K
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	362000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	143000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	794000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent		USD
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2018Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	2235000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	53000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	1042000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-2496000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross Noncurrent DeferredTaxAssetsGrossNoncurrent	11460000	USD
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	us-gaap	Operating Expenses OperatingExpenses	19755000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	13849000	USD
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
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CY2019	dei	Entity Small Business EntitySmallBusiness	true
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P4Y10M6D
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue		USD
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	10.79
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	9.01
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross		shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	8.62
CY2019	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P4M17D
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.87
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	624256	shares
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised		shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	624256	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue		USD
CY2019Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	51000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	823	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue		USD
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod	P10Y
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	8.87
CY2018Q4	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	9883000	USD
CY2018Q4	clro	Number Of Shares Over Subscribed NumberOfSharesOverSubscribed	754868	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	78786	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	11.97
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y11M5D
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	527181	shares
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	208000	USD
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y3M11D
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised		shares
CY2018Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.07
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	544647	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	544647	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.78
CY2018Q1	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2018-03-21
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue		USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	34066	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue		USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross		shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	7.85
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	8.97
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue		USD
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P4Y10M24D
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P4Y11M5D
CY2018Q1	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2018-03-07
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	106108	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	7.56
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	9.01
CY2018Q4	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	1.20
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	1038000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0	USD
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P5Y3M11D
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	764430	shares
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	10249000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	11441000	USD
CY2018	us-gaap	Depreciation Depreciation	497000	USD
CY2019Q4	clro	Deferred Gross Profit DeferredGrossProfit	173000	USD
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	16650725	shares
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	9192000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-155000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-82000	USD
CY2019	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	23000	USD
CY2019	us-gaap	Depreciation Depreciation	512000	USD
CY2018	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	288000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	11211000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	17000	USD
CY2019	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	121000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	34365000	USD
CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent		USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	14009000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	9243000	USD
CY2018	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	6531000	USD
CY2018Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	194000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	69000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	51000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	606000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	720000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	665000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.061	pure
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	2978000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	2598000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y5M5D
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	612000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	380000	USD
CY2018Q4	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	537000	USD
CY2018Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	882000	USD
CY2018Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	4715000	USD
CY2019Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	4543000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt		USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	720000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	2222000	USD
CY2019	us-gaap	Long Term Purchase Commitment Amount LongTermPurchaseCommitmentAmount	844000	USD
CY2018	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	339000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	902000	USD
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<div> <div style="font-family: 'times new roman', times; font-size: 10pt;"> <div style="border-right: none; border-left: none;"> <div style="border-right: none; border-left: none;"> <p style="margin: 0px; text-align: justify; text-indent: 0px;"><font style="font-family: 'Times New Roman'; font-size: 10pt; font-style: italic;">Use of Estimates</font><font style="font-family: 'Times New Roman'; font-size: 10pt;"> – The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of sales and expenses during the reporting periods. Key estimates in the accompanying consolidated financial statements include, among others, revenue recognition, allowances for doubtful accounts receivable and product returns, provisions for obsolete inventory, potential impairment of goodwill and of long-lived assets, and deferred income tax asset valuation allowances. Actual results could differ materially from these estimates.</font></p> </div> </div> </div> </div>
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	631000	USD

Files In Submission

Name	View Source	Status
0001753926-20-000071-index-headers.html	Edgar Link	pending
0001753926-20-000071-index.html	Edgar Link	pending
0001753926-20-000071.txt	Edgar Link	pending
0001753926-20-000071-xbrl.zip	Edgar Link	pending
clro-20191231.xml	Edgar Link	completed
clro-20191231.xsd	Edgar Link	pending
clro-20191231_cal.xml	Edgar Link	unprocessable
clro-20191231_def.xml	Edgar Link	unprocessable
clro-20191231_lab.xml	Edgar Link	unprocessable
clro-20191231_pre.xml	Edgar Link	unprocessable
ex211_1.htm	Edgar Link	pending
ex231_2.htm	Edgar Link	pending
ex311_3.htm	Edgar Link	pending
ex312_4.htm	Edgar Link	pending
ex321_5.htm	Edgar Link	pending
ex322_6.htm	Edgar Link	pending
ex41_7.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MainDocument.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$CLRO
CLEARONE INC Stock $clro

2019 Form 10-K Financial Statement

#000175392620000071 Filed on March 30, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CLRO CLEARONE INC Stock $clro

2019 Form 10-K Financial Statement

#000175392620000071 Filed on March 30, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CLRO
CLEARONE INC Stock $clro